| 架空蒸汽管线外表面传热系数修正研究 |
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| 引用本文： | 李鹏,葛苏鞍,葛永广,马中山,李栋. 架空蒸汽管线外表面传热系数修正研究[J]. 管道技术与设备, 2021, 0(1): 1-5 |
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| 作者姓名： | 李鹏 葛苏鞍 葛永广 马中山 李栋 |
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| 作者单位： | 新疆油田公司实验检测研究院,新疆克拉玛依 834000;油气田节能减排专家工作站,新疆克拉玛依 834000;新疆维吾尔自治区油气田环保节能工程研究中心,新疆克拉玛依 834000;东北石油大学土木建筑工程学院,黑龙江大庆 163318 |
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| 摘 要： | 表面传热系数是计算架空蒸汽管线对流散热损失的关键参数,现有经验关联式认为其与环境风速等因素有关,但未考虑这些因素的具体影响.文中建立了蒸汽管线模型,采用流体动力学(CFD)数值模拟计算方法,分析了环境风速、管径对蒸汽管线表面传热系数的影响,修正了环境风速和管径因素的表面传热系数关联式,其拟合优度达到0.99以上.结果表...
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| 关 键 词： | 架空蒸汽管线 保温材料 CFD 环境风速 管径 表面传热系数 |
Study on Correction of Heat Transfer Coefficient of Overhead Steam Pipeline Surface |
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| LI Peng,GE Su-an,GE Yong-guang,MA Zhong-shan,LI Dong. Study on Correction of Heat Transfer Coefficient of Overhead Steam Pipeline Surface[J]. Pipeline Technique and Equipment, 2021, 0(1): 1-5 |
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| Authors: | LI Peng GE Su-an GE Yong-guang MA Zhong-shan LI Dong |
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| Affiliation: | (Xinjiang Oilfield Company Experimental Testing Institute,Karamay 834000,China;Expert Workstation for Energy Saving and Emission Reduction in Oil and Gas Fields,Karamay 834000,China;Oil and Gas Field Environmental Protection and Energy Conservation Engineering Research Center of Xinjiang Uygur Autonomous Region,Karamay 834000,China;School of Civil Engineering and Architecture,Northeast Petroleum University,Daqing 163318,China) |
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| Abstract: | The surface heat transfer coefficient is important parameters for calculating the convection heat loss of the overhead steam pipeline.The existing empirical correlation considers that it is related to the wind speed and other factors,but the specific influence of these factors is not considered.In this paper,a model of steam pipeline is established adopting CFD numerical simulation method.The influence of environmental wind speed and pipe diameter on the heat transfer coefficient of steam pipeline surface was analyzed.The correlation equation of surface heat transfer coefficient between environmental wind speed and pipe diameter was corrected,and the goodness of fit is above 0.99.The results show that with the increases of wind speed,the maximum value of average surface heat transfer coefficient h increases to 31.28 W·m-2·K-1,and the windward surface increases faster than the leeward surface.The pipe radius increases from 0.16 m to 0.3 m,average surface heat transfer coefficient h decreases by 14.41%. |
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| Keywords: | overhead steam pipeline insulation material CFD environmental wind speed pipe diameter surface heat transfer coefficient |
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